Abstract
ABSTRACTHepatitis B virus-e-antigen (HBeAg) is a viral marker to assess hepatitis B virus (HBV) replication. We have evaluated the reliability of three commonly available HBeAg immunoassays using World Health Organization-International Standard and clinical samples. In addition the performance of enzyme immunoassays (EIAs) was assessed by kinetic binding and reagent exchange experiments. Analytical and diagnostic sensitivity were significantly different among HBeAg assays (P < 0.01). The affinity of capture/detector antibodies varied significantly between EIAs (P < 0.01). Our findings suggest that significant difference in the affinity of capture/detector antibodies to HBeAg may impact the overall performance and the reliability of currently available HBeAg assays in HBV diagnosis and management.
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